1.0 DCPLUS 20241217 15174500 20241217 15174500 https://www.arcgis.com/sharing/rest/content/items/eeeea74fe2e3405098a4f247351c82ae/info/thumbnail/thumbnail1734448916324.png https://www.arcgis.com/home/item.html?id=eeeea74fe2e3405098a4f247351c82ae eeeea74fe2e3405098a4f247351c82ae Feature Service https://services6.arcgis.com/2DGR1sZBUvcPcd8Z/arcgis/rest/services/HabScope_Stations/FeatureServer GCOOS HabScope Stations 2024-12-17T15:17:45 2024-12-17T15:22:53 GCOOS Algal Bloom HABScope Observing Inventory GCOOS HabScope Observation Stations <div>Cell counts for Karenia brevis samples are typically completed manually by a technician using a laboratory microscope. The counts can take up to one week to complete and at the height of the bloom season are unlikely to be valid when published.</div><div><br /></div><div>HABscope was designed to be usable by a volunteer with minimal training and to provide real-time cell counts from the sampling location. The HABscope field kit consists of an Omax microscope, Apple iPod Touch, 3D printed adapter, StraightTalk hot spot, power supply and case. An app is loaded on the iPod Touch and provides sentinels with the ability to record a thirty second video and upload the video to a cloud server.</div><div><br /></div><div>When a video is uploaded to the server, it is first rotated for proper orientation and then run through the detection algorithm. The algorithm uses visual characteristics in the first pass to discriminate between particles of interest and detritus. Based on morphological characteristics, regions of interest (ROI) are identified. Each ROI is clipped from a frame and fed to a Google TensorFlow model.</div><div><br /></div><div>Using image recognition techniques each ROI is classified as ‘Karenia’or ‘Not Karenia'. Karenia cells are marked with a green target indicator. Other moving objects are marked with a red target indicator. The maximum number of visible cells is used to calculate cells/Liter. The scale used in the calculation is self-generated by the algorithm. Testing against known cell quantities has shown that HABscope consistently provides cell counts within 20% of manual counts.</div> GCOOS The Gulf of Mexico Coastal Ocean Observing System (GCOOS) aggregates data from regional data providers for the convenience of all data users. Data published on this site should not be used for navigation or certain other uses as we cannot guarantee data accuracy or availability. The data delivery services are provided ‘as is’ without warranty of any kind. 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